In the world of open source, when it comes to monitoring, Nagios is the most preferred choice. But managing multiple Nagios screens can be a daunting task. while looking for a simple solution i came across NagCen.
NagiosCenter is a centralized viewer to show data of several (more than one) Nagios server spreaded in different networks. It uses therefore a parser in python and also an PHP Mysql Web-fronted.
Deployments are a critical phase of any project. In the "stone age", developers used to simply scp the files required into production. And there used to be issues when you are dealing with multiple http servers. Keeping all the servers in sync was always the issue. Then capistrano came into picture. It made deployment of ruby/rails apps very easy. Me and a few other people went ahead and modified it to deploy code into production for php apps as well. But it was a tricky job since capistrano was originally designed to work for ruby/rails apps. Here is a sample capistrano code that sucks out code from svn and pushes it to multiple web servers - and then runs some specific post deployment tasks on them.
You must have seen this error while installing some packages though apt-get or aptitude in Ubuntu. The reason for the error is the the GPG keys for that package is not available in your system DB, hence the package can't be verified. The fix is pretty much simple, you just need to download the GPG keys for the package and then re-install the package.
This is a tribute to the nice guys. The nice guys that finish last, that never become more than friends, that endure hours of whining and bitching about what assholes guys are, while disproving the very point. This is dedicated to those guys who always provide a shoulder to lean on but restrain themselves to tentative hugs, those guys who …